--- a/short.conf	Sun Jul 05 22:52:36 2015 +0200
+++ b/short.conf	Sun Jul 05 23:40:51 2015 +0200
@@ -25,5 +25,5 @@
 
 [macros]
 (?u)\b(i):(?P<target>[\$\w]+)=eximvar[]
-(?u)\b(o):(?P<target>\w+)=eximopt[]
+(?u)\b(o):(?P<target>[.\w]+)=eximopt[]
 (?u)\b(d):(?P<target>\w+)=eximdriver[]